hi sir i am having palpitations from last four years with breathlessness and skipped beats , sir i had gone threw all cardiac evaluations with echo holter and tmt all was negative , doc said nothing to worry but i still annoyed with these palpitations , some times i feel sinking sensation and palpitations all day , pls sir help me what should i do now , in my holter there was only a single event of ventricular bigeminy rest was normal , sir pls guide me what should i do now.